The author has reported his own apprehensions about the lack of integrative vision in the study of neurosciences and psychoanalysis, related to the fact that our education and culture are based on the paradigm of fragmentation. The consequence of this fragmented vision is that the specialist can not capture the unity of the facts and the subsequent phenomena within the process of development and evolution. The author has taken the survival instinct that is inherent to life itself and to all live beings as a basis that is common to all organic and mental phenomena and tries to study their expressions, integrating neurobiological and psychological phenomena, which are inseparable, within the vision of self-regulation conceived by Freud.